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Finding the Fourth Proportional to 17,476.31, 26,188.54 and 12,836.63

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Solution

The fourth proportional to 17,476.31, 26,188.54 and 12,836.63 is: 19,235.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,476.31 : 26,188.54 = 12,836.63 : x
  2. Step 2: Convert to fraction form
    17,476.31/26,188.54 = 12,836.63/x
  3. Step 3: Cross multiply
    17,476.31x = 26,188.54 × 12,836.63
  4. Step 4: Simplify right side
    17,476.31x = 336,172,447.46
  5. Step 5: Solve for x
    x = 336,172,447.46/17,476.31
  6. Step 6: Final answer
    x = 19,235.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.